CENTRIFUGAL PUMPS FP SERIES

P

OPERATING MANUAL

U

M

P

E

CENTRIFUGAL PUMPS FP SERIES

Pump type: Pump no. :

N

P

OPERATING MANUAL - FP PUMP SERIES

U

M

P

E

N

Contents page

page

1.

General

1

6.

Putting into operation

5

1.1

Application

1

6.1

General

5

2.

Safety

1

6.2

Special directions

5

2.1

Identification of directions in the Operating Manual

1

6.2.1

Double shaft seal

5

6.2.2

Bearing pedestal version

5

2.2

Staff qualification and training

1

6.2.3

5

2.3

Dangers connected with failure to observe the safety directions

2

Controlling and monitoring devices

7.

Taking out of operating

5

2.4

Safety-conscious work

2

8.

Maintenance

5

2.5

Safety directions for the user/operator

2

8.1

General

5

8.2

Maintenance directions

5

2.6

Safety directions for maintenance, inspection and installation work

2

8.2.1

Versions A, B, C, D

5

8.2.2

K- and KF-bearing bracket version

6

Unauthorised modification and manufacture of spare parts

2

8.2.3

Bearing pedestal version

6

8.2.4

FPE

6

Unpermissible operating methods

2

8.2.5

Double shaft seal

7

8.3

Lubrication table

7

3.

Transport and storage

2

8.4

Disassembly

7

3.1

Safety measures

2

8.4.1

IDisassembly of the shaft seal

7

3.2

Transportation

2

8.5

Assembly

7

3.3

Storing the pump

3

8.5.1

General

7

3.4

Protection against ambient influences

3

8.5.1.1 Setting the gap

8

8.5.1.2 Screw tightening torque

8

4.

Description of the pump and its accessories

3

8.5.2

8

4.1

General

3

8.5.2.2 FP 1251 / 1252

10

4.2

Types

3

8.5.2.3. FPE 1251 / 1252

10

5.

Installation and mounting

4

5.1

Information on the place of installation

4

5.2

Inspection before installation

4

5.3

Electrical installation

4

5.4

Piping

4

5.4.1

General

4

5.4.2

Suction pipe

4

5.4.3

Supply pipe

4

5.4.4

Liquid level

5

5.4.5

Delivery pipe

5

5.4.6

Sealing liquid pipe

5

2.7 2.8

Assembling the pump head

8.5.2.1 FP pump with clamp and flanged joint 8

8.5.2.4 FPE with single mechanical shaft seal 11 8.5.2.5 FPE with double mechanical shaft seal

11

8.5.3

12

Assembly motor

8.5.3.1 Versions K and KF

12

8.5.3.2 Bearing pedestal version

12

9.

Spare parts

13

10.

Faults, Causes, Remedy

14


1. General

This Operating Manual applies to all FP series pumps. The Operating Manual must be read before installing or operating the pump. Please observe all safety directions.

1.1 Application Depending on the order-related version, suitable for the following applications among others: Dairy products Raw milk, whey, cream, skimmed milk, milk concentrate, whey concentrate

Foods Animal and vegetable oils nad fats, vinegar, sauces, flavourings

and, for example, in the industrial processes below: Water conditioning Evaporating Distillation Dealcoholisation Reverse osmosis Filtration Extraction Carbonising Heating/pressure increase Fermentation Emulsifying Homogenising Mechanical separation Dialysis Bottling Dosing Degassing Transfer Cleaning applications/CIP In-line mixing

2. Safety

Alcoholic beverages Liqueur, wine, sparkling wine, pot ale

Pharmaceuticals/ Cosmetics Superpure water, infusion solutions, lotions, plant extracts, perfumes

Paper/pulp Glues, starch solutions, resin solutions, kaolin solutions

Biotechnology Cellular suspensions, nutrient solutions, enzymes

Sugar/confectionery Liquid sugar, treacle, starch solution

Meat utilisation Brine, meat broth, blood

This Operating Manual contains directions of fundamental importance which must be observed during installation, operation and maintenance. For this reason, it is imperative that the Operating Manual be read by the fitter as well as the responsible qualified staff/user before both installation and putting into operation and be kept constantly at hand at the place of use of the machine/system.

Chemicals Photographic emulsions, acids, lyes, waste water containing crystals, detergents

1

or by the following to warn of electrical voltage

safety symbol in compliance with DIN 4844 - W 8

In the case of safety directions, whose nonobservance may endanger the machine and its functioning, the word CAUTION is inserted.

• rotation arrow • fluid connection identifier be observed and kept in a fully readable state.

2.2 Staff qualification and training The staff entrusted with operation, maintenance, inspection and installation must be suitably qualified for these tasks.

Apart from the general safety directions contained under the heading Safety, the special safety directions, e.g. for private use, included under the other headings must also be observed.

The area of responsibility, accountability and supervision of staff must be precisely laid down by the user. Should staff not possess the knowledge required, they must receive training and instruction. If necessary, this can be carried out on behalf of the user of the machine by the manufacturer/ supplier.

2.1 Identification of directions in the Operating Manual

Furthermore, the user must ensure that the contents of this Operating Manual are fully understood by its staff.

Brewing Mash, wort, yeast, beer

! safety symbol in compliance with DIN 4844 - W 9

It is vital that directions located directly on the machine such as

Nonalcoholic beverages Syrup, concentrates, must

are specially identified by the general danger symbol

The safety directions contained in this Operating Manual, which, if not observed, may endanger persons,

P

2.3 Dangers connected with failure to observe the safety directions Failure to observe the safety directions may endanger persons as well as the environment and machine. Failure to observe the safety directions can result in the loss of all claims for compensation. The following are examples of individual dangers which may result from failure to observe the safety directions: • Failure of important machine/ system functions • Failure of prescribed methods of maintenance and servicing • Endangerment of persons by electrical, mechanical and chemical effects • Endangerment of the environment due to the leakage of dangerous substances

2.4 Safety-conscious work The safety directions contained in this Operating Manual, the current national accident prevention regulations as well as any internal working, operating and safety rules issued by the user must be observed.

2.5 Safety directions for the user/operator • Should hot or cold machine parts pose dangers, the customer must ensure that they cannot be touched. • The touch guards fitted to moving parts (e.g. coupling) must not be removed when the machine is in operation. • Leakages (e.g. of the shaft seal) of dangerous pumped fluids (e.g. explosive, toxic, hot) must be dealt with in such a way that no danger is posed to persons or to the environment. Any statutory provisions must be observed. • Dangers resulting from electrical power must be prevented (see,

for example, the directions issued by the Association of German Electrical Engineers (VDE) and the local power supply companies for details).

2.6 Safety directions for maintenance, inspection and installation work The user must ensure that all maintenance, inspection and installation work is carried out by authorised and qualified staff with adequate knowledge of the machine gained by an in-depth study of the Operating Manual. Work on the machine must always be carried out only when it is at standstill. It is imperative that the procedure described in the Operating Manual for shutting down the machine be observed. Pumps or pumping sets conveying media of risk to health must be decontaminated. All safety and protective devices must be refitted or returned to operation immediately after completing the work.

U

Modifications or alterations to the machine are permissible only after consultation with the manufacturer. Original spare parts and accessories authorised by the manufacturer promote safety. The use of other parts may void liability for the consequences.

P

E

N

3. Transport and storage

3.1 Safety measures

! Before transportation the pump must be protected against falling over, e.g.: • by securing to the pallet with transport straps • by screwing to the transport pallet.

3.2 Transportation The choice of transport mode depends on the size and weight of the pump. Pumps can be easily transported with a crane, low lift platform truck or fork lift truck, e.g.: a) with a crane

wrong

Before putting into or returning to operation, the points specified in the section entitled Putting into operation must be observed.

2.7 Unauthorised modification and manufacture of spare parts

M

correct

The crane and strap must be of adequate capacity and strength. The lugs on the motor are not suitable for lifting or transporting the pump. An exception is the FP 1250 which is fitted with lugs on the motor, bearing pedestal 4 and pump casing for transportation. CAUTION

b) with a low lift platform truck or fork lift truck

2.8 Unpermissible operating methods The safety of operation of the machine supplied is ensured only when used properly. The limit values stated in the order-related documentation must never be exceeded. 2


3.3 Storing the pump

4. Description of the pump and its accessories

The place where the pump is stored should fulfil the following conditions: it should be • dry

4.1 General

• dust-free • heated (approx. 20° - 25° C) • ventilated. The pump must be cleaned before storing as there is otherwise a risk that pumping medium residue will harden, damaging the pump. CAUTION

The interior of the pump must be dry after cleaning and before sealing the suction and delivery connections. CAUTION

4.2 Types

FRISTAM type FP centrifugal pumps are non-self-priming pumps for fed media. FRISTAM centrifugal pumps owe their reliability to the use of components made of solid, cast or forged stainless-steel material.

A,B,C,D: Special motor

Open impellers are predominantly used. Depending on the operating conditions, Fristam type FP centri-fugal pumps are equipped with single or double shaft seals. The pump casing and cover are available with a heating jacket for all types except FPE.

K: Compact bearing bracket with IEC standard motor type B3/B5

3.4 Protection against ambient influences With high air humidity (> 50%) it is recommended that the pump be packed with silica gel. When covering the pump with a tarpaulin, take care to avoid the condensation of water. When stored for extended periods (over six months), the O-rings and, if necessary, the lubrication, should be checked before putting into operation. In addition, moving parts should be rotated every 3 months.

KF: Compact bearing bracket with base and IEC standard motor type B5

L: Bearing pedestal with coupling, coupling protector, IEC standard motor type B3, on joint base frame

FPE: IEC standard motor B3/B5 with clamping disc

Versions as standard or available with shroud and adjustable legs.

3

P

5. Installation and mounting

• supporting the piping in front of and behind the pump

U

M

P

E

N

• Avoid the formation of air pockets in the piping Air pocket

5.1 Information on the place of installation Before installing the pump, it must be ensured 1. that the base is sufficiently dimensioned for the weight of the pump

Relieving the piping

2. that the installation surface is level

5.2 Inspection before installation

3. that there is sufficient space for maintenance work 4. that there is an adequate supply of air since the motor will not otherwise be sufficiently cooled 5. that the room characteristics conform with the legal provisions with regard to the max. permissible sound pressure 6. that the pump is suitable for the place of installation, e.g. operation of pumps in potentially explosive surroundings.

If a pump is not CAUTION equipped with an explosion-protected motor, it must not be operated in an explosive atmosphere. During installation, care must be taken to ensure that the pump is not distorted by external forces. Distortion of the pump can be avoided by: • alignment of the pump connections

Danger due to air pockets

• Avoid deposits The pump must be cleaned before operation. In addition, it must be ensured that no impurities are able to enter the pump through the system.

5.3 Electrical installation

5.4.2 Suction pipe • Keep as short as possible.

Observe the electrical regulations. The pump must be connected to the power supply by qualified staff only .

• Do not locate any pipe bends directly in front of the suction connection. 5 - 10 x D

• Adjust the overloads according to the motor name plate • Do not overload the unit. • Connect according to the circuit diagram in the terminal box. • Protect the cable glands against moisture. • Check the direction of rotation using a rotating field measurement.

R≥2xD

Suction-side pipe bend

• Never allow the pump to become drained when at standstill, e.g. by installing a foot valve. • If a shutoff valve is required, it must be installed as near to the pump as possible. Do not regulate the pump with valves on the suction side. CAUTION

5.4 Piping 5.4.1 General

Alignment with a try square

To ensure trouble-free operation, the following installation directions must be observed:

5.4.3 Supply pipe

• Avoid abrupt pipe transition pieces.

• Install with constant downward slope without reverse gradients.

• Dimension sufficiently so that the NPSHSystem > NPSHPump.

Optimum supply

4


• Keep pipe resistance low. Avoid installing valves, elbows, transition pieces etc.

• Fill the pump with pumped fluid and start the sealing liquid system, if fitted, at the specified pressure (Tab. 1).

5.4.4 Liquid level

Running the pump CAUTION dry may damage the shaft seal. With a double shaft seal the flow of sealing liquid to the shaft seal must be ensured before putting into operation.

Before operating, fill the pump and suction pipe with the pumping medium at least up to the delivery connection.

5.4.5 Delivery pipe • Install a shutoff valve in the delivery pipe. Abruptly shutting off the delivery pipe during operation of the pump may cause hammering:

Shutting off the delivery pipe for extended periods will damage the pumped fluid and possibly the pumping set. CAUTION

CAUTION

• Risk of damaging the fluid pumped and the pump itself.

CAUTION

The max. speed may not exceed

• Install a throttle valve in the supply pipe. • Fit the outlet pipe with a flow meter.

• Empty the pump. • Clean the pump. • Dry the pump. • Protect the pump against ambient influences (dust, moisture, heat etc.).

8. Maintenance

8.1 General 6.2 Special directions

• Make sure the flushing pressure is correct (see Tab. 1).

It is imperative that the ma intenance directions be followed since the efficiency and service life of the pump may otherwise be impaired.

• The sealing medium must be clean and have no abrasive constituents. • The temperature of the sealing medium must not exceed 70°C.

6. Putting into operation

• If fitted, close the shutoff valves in the suction and delivery pipes.

3,600 rpm

6.2.1 Double shaft seal 5.4.6 Sealing liquid pipe

7. Taking out of operation

The pump must be disconnected from the power supply before all maintenance work.

• Water used as sealing medium, must not exceed an over all hardness of 10° dH at a temperature of 60° C.

6.1 General • Clean the pump.

6.2.2 Bearing pedestal version

• Clean the pipe system.

• Check the oil level and top up, if necessary.

• Fill and vent the pump and suction pipe.

8.2 Maintenance directions

• Always start up the pump with the valve closed.

The coupling guard CAUTION must be fitted before putting into operation.

Check the direction of rotation: (see identifying marking on the pump).

6.2.3 Controlling and monitoring devices

CAUTION

An incorrect direction of rotation may damage unidirectional shaft seals.

5

Disconnecting the power supply

(If fitted.) See order-related documentation for a detailed description.

8.2.1 Versions A, B, C, D The motors have a locating bearing at the A-end (drive) and a floating bearing at the B-end. The motor bearings cannot be regreased. Under normal conditions, it is recommanded to replace the motor bearings after approx. 15,000 to 20,000 operating hours.

P

U

M

P

E

N

8.2.2 K- and KF-bearing bracket version Type K- / KF 1

K- / KF 2

K- / KF 3

Bearing

Lubricant

Quantity of Lubricant

Change-interval

Deep groove ball bearing Cylindrical-roller bearing

Lifetime lubrication. If necessary, replacement of the entire bearing





Darina Grease II (Deutsche Shell AG)



approx. 20 g

approx. 40 g

approx. 60 g

6,000 hours

5,000 hours

5,000 hours

During the run-in phase, increased temperatures may occur with new bearings, which then drop back to normal. The motor bearings cannot be regreased. Under normal conditions, it is recommanded to replace the motor bearings after approx. 15,000 to 20,000 operating hours.

8.2.3 Bearing pedestal version Lubricant

Quantity of Lubricant

Change-interval


approx. 10 g

19,000 hours

approx. 1 litre

8,000 hours

2

SAE 15 - W 40 Lubricant (Essolube HDX Plus 30)

approx. 3 litre

8,000 hours

3 and 3V


approx. 5 litre

8,000 hours

4


Type 1

• Check the oil level regularly. • Oil change once a year - Drain off the oil at operating temperature. - Clean the drain plug and seal before resealing. • The motor bearings cannot be regreased. If worn, the bearings must be replaced. Under normal conditions, it is recommanded to replace the motor bearings after approx. 15,000 to 20,000 operating hours.

8.2.4 FPE The motors have a locating bearing at the A-end (drive end) and a floating bearing at the B-end. The motor bearings cannot be regreased. The motor bearings cannot be regreased. If worn, the bearings must be replaced. Under normal conditions, it is recommanded to replace the motor bearings after approx. 15,000 to 20,000 operating hours.

6


8.2.5 Double shaft seal

8.4.1 Disassembly of the shaft seal

Check the sealing liquid pressure in accordance with the information in Tab. 1. Type of mech. shaft seal Face to Face Back to Back

• Unscrew the cover and empty the pump clean if necessary. • Block the impeller, e. g. with round aluminium or plastic object in the delivery connection.

max. flushing pressure P (bar) P=0.2 bar P=PSystem+0.5 bar

• Undo the impeller nut.

Tab. 1 Flushing Pressure

• Pull off the impeller from the shaft and remove the drive key.

See order-related documentation fot special versions.

• Carefully dismantle all accessible parts of the shaft seal in accordance with the order-related documentation.

8.3 Lubrication table

• Tip regarding double shaft seal:

Lubricant Type

ARAL

BP

DEA/Texaco

ELF

ESSO

Mobil

Shell

Compact bearing bracket Cylindrical-roller bearing

Aralub HTR 2 Energrease Paragon EP 2 GRX 500 HTG

HT Grease 275 Mobiltemp Darina SHC 100 Grease 2

Bearing pedestal 1

Aralub HTR 2 Energrease Paragon EP 2 GRX 500 HTG

HT Grease 275 Mobiltemp Darina SHC 100 Grease 2

Bearing pedestal 2

Vitam DE 46

HLPD-Oel 46

Bearing pedestal 3, 3V, 4

Turboral 30 W Energol HD-S 30

Energol HLP-D

Actis HLPD 46 Elfolna HLPD

Cronos Super ELF PerforEssolube SAE 30 mance XR 30 HDX plus 30

HLPD 46

Hydrol DO 46

Delvac 1300

Rotella MX

Another brand lubricant of equal quality and viscosity may also be used.

Generally, the flush liquid pipes on the pump may stay in place for the ABCD, L or K/KF versions. Only for the FPE and older L and K/KF versions, the sealing liquid pipes need to be removed before disassembly of the pump casing. • Disassemble the pump casing. A distinction is made between: • Pumps with clamped joints - Undo the clamping screw - Spread the clamp open slightly with a wedge

8.4 Disassembly

- Pull the casing out of the clamp • Pumps with a flanged joint - Undo the fastening screws on the flange.

• Remove the remaining parts of the shaft seal.

• If fitted, close the shutoff valve in the suction pipe and delivery pipe.

8.5 Assembly

• Undo the suction/delivery connections and remove the pump from the system.

! In the case of dangerous pumping media, legal and works safety directions must be observed.

7

- Pull off the casing.

• Disconnect the pump from the power supply so that it is de-energised (see 8.1).

8.5.1 General Before assembling the pump, the following must be carried out: • the parts cleaned • the sealing faces are cleaned, or reworked if necessary (lapping, etc.) • all parts are to be checked for precision fit and, if necessary,

P

reworked. • replace worn parts. • O-rings (elastomers) are generally replaced before assembly. Application of grease when mounting the pump cover and the shaft seal: CAUTION

1. The grease used must be compatible with the product, e. g. food-safe quality. 2. Use no grease or oil with O-rings made of EPDM material. 3. Do not apply grease or oil to the seal faces.

Type of pump 711 / 712 721 / 722

The gap size of the pump must be reset in accordance with Tab. 3.

0.5 mm

741 / 742 3421 / 3422

0.5 mm

1.0 mm

3441 / 3442 3541 / 3542 1.0 mm

3451 / 3552 3551 / 3552 751 / 752

0.7 mm

101 / 102 – 200 101 / 102 – 250

N

8.5.2 Assembling the pump head 8.5.2.1 FP pump with clamp and flanged joint Version:

0.6 mm

7.. / 10.. / 11.. / 123. / 34.. / 35.. A distinction is made between pumps with • clamped joint • flanged joint. Both versions can be equipped with a single or double shaft seal.

2.0 mm

1151 / 1152 1251 / 1252

E

Size:

3531 / 3532

1231 / 1232

P

0.5 mm

3521 / 3522 3431 / 3432

M

A, B, C, D, K / KF, Bearing pedestal

3401 / 3402

1051 / 1052

8.5.1.1 Setting the gap

Axial gap between Impeller/ Impeller/ cover casing

U

1.0 mm

1.5 mm

0.5 mm

1.2 mm

Tab. 3 Gap sizes

Assembly of the shaft seal: • with a single shaft seal carry out steps II. and III. • with a double shaft seal carry out steps I. to III. See order-related documentation.

8.5.1.2 Screw tightening torque The tightening torque in the tables below must be complied with.

Pump with clamped joint:

Material: steel Class of strength: 8.8 M 6 M 8 M10 M12 M16 M 20 Nm 10 25 49 85 210 420 Material: stainless steel Class of strength: A2-70 and A4-70 gap impeller-cover cover height

M 6 M 8 M10 M12 M16 M 20 Nm 7,3 17,5 35 69 144 281 Tab. 4 Screw tightening torque

1. Shaft seal step I. (only for double shaft seal): Push the rear seal set (drive side) onto the pump shaft. 2. Shaft seal step II. (applies to single and double shaft seal): Fit the entire shaft seal housing with seals in the pump casing and protect against shifting. 3. Carefully slightly open the clamped joint. Push the pump housing over the pump shaft and 8


into the clamping element and tighten the clamping screw by hand.

gap

gap

4. Shaft seal step III.: Push the front seal set (product side) onto the pump shaft. 5. Insert the feather key, slotted retaining ring and impeller.

8. Tighten the clamping screw with the following tightening torque: - special motor M 10 with 36 Nm - all others M 10 with 45 Nm M 12 with 75 Nm. 9. Place the cover with seal onto the casing and tighten the cover nuts. Check each time the impeller is assembled, that it does not touch the casing at any point. CAUTION

4. Shaft seal step III.: Push the front seal set (product side) onto the pump shaft. 5. Insert the feather key and impeller and screw tight the impeller nut. 6. Check the gap size of the cover/ impeller and impeller/casing in accordance with Tab. 3 and correct, if necessary, with shims between the casing and pump skirt.

gap

Pump with flange joint

6. Insert the seal ring into the impeller nut. Secure the impeller against twisting and tighten the impeller nut with 100 Nm.

gap

7. Remove the impeller nut and push the slotted retaining ring onto the pump shaft.

7. Set the gap size of the cover/ impeller and impeller/casing by shifting the pump casing within the clamped joint (see Tab. 3 for gap size).

9

1. Shaft seal step I. (only for double shaft seal): Push the rear seal set (drive side) onto the pump shaft.

8. Fit the seal ring to the impeller nut and mount on the pump shaft. Block the impeller and tighten the impeller nut with 100 Nm.

2. Shaft seal step II. (applies to single and double shaft seal): Fit the entire shaft seal housing with seals in the pump casing and protect against shifting.

9. Place the cover with seal onto the casing and tighten the cover nuts.

3. Screw the pump casing and shims to the carrier element (e.g. bearing pedestal).

Check each time the impeller is assembled, that it does not touch the casing at any point. CAUTION

P

8.5.2.2 FP 1251 / 1252 Version: A, B, C, D, Bearing pedestal Size: 1251 / 1252 1. Fit the stationary seal with an O-ring. 2. Insert the stationary seal into the shaft seal housing and secure against twisting. This is done by pushing the stationary seal groove to meet the cylindrical pin.

10. Remove the impeller nut and fit the slotted locking ring onto the pump shaft. 11. Fit the seal to the impeller nut and screw onto the pump shaft. Hold the impeller in position and torque up the impeller nut with 200 Nm. 12. Place the cover with greased seal onto the casing and tighten the cover nuts.

U

M

P

E

N

6. Check and align the true running of the stub shaft. Concentricity tolerance max. 0.06 mm for motors ≤ 30 kW 0.08 mm for motors > 30 kW 7. Fit the bellhousing to the motor flange. 8. Fit the mating ring with an O-ring. Gapping bush


Gapping bush 8.5.2.3 FPE 1251 / 1252 Version: FPE with single mechanical shaft seal Size:

1. Remove the drive key from the motor shaft.

9. Insert the mating ring into the shaft seal housing and secure against twisting. This is done by pushing the mating ring groove over the cylindrical pin.

3. Screw the shaft seal housing with the greased O-ring onto the pump casing.

2. Clean the grease from the motor shaft and the bore of the stub shaft.

10. Screw the shaft seal housing with the greased O-ring onto the pump casing.

4. Screw the pump casing to bearing pedestal or special motor.

3. Seal the motor shaft in the area of the shaft shoulder with a sea ling gel (e.g. Stucarit sealing gel 309).

11. Screw the pump casing to bearing pedestal or special motor.

1251 / 1252

5. Push the front rotary seal (product-side) onto the pump shaft. 6. Insert the gapping bush with the driver. If this is a new bush, it must first be fitted with a cylindrical pin. 7. Fit the seal to the impeller. 8. Insert the drive key and impeller and tighten the impeller nut. 9. Check the gap between the cover/impeller and impeller/ casing in accordance with Tab. 3 and, if necessary, correct by reducing the gapping bush. The casing/impeller gap is given by the distance between the gapping bush and the casing base.

4. Push the stub shaft with shrink-fit ring onto the motor shaft up to the shaft shoulder. 5. Tighten the hex socket screws on the shrink-fit ring in diagonally opposite sequence (see Tab. 5). Hex socket screw

Tightening torque

M6 M8

12 Nm 30 Nm

Tab. 5 Tightening torque for screws on the shrink-fit ring.

12. Push the front seal set (product-side) onto the pump shaft. 13. Insert the fixed bushing with the driver. If this is a new bushing, it must first be given a cylindrical pin. 14. Fit the impeller with a seal ring. 15. Insert the feather key and impeller and screw the impeller nut tight. 16. Check the gap size of the cover/impeller and impeller/ casing in accordance with Tab. 3 and, if necessary, correct by reducing the fixed bushing. The casing/impeller gap size consists of the spacing between the fixed bushing and the casing base. 17. Remover the impeller nut and 10


push the slotted retaining ring onto the pump shaft. 18. Fit the seal to the impeller nut and screw onto the pump shaft. Hold the impeller in position and torque up the impeller nut with 200 Nm. 19. Place the cover with greased seal onto the casing and screw down. Check each time the CAUTION impeller is assembled, that it does not touch the casing at any point.

Hex socket screw

Tightening torque

M5 M6

6 Nm 12 Nm

Tab. 6 Tightening torque for the fastening screws of the shrink-fit ring

6. Check the hollow shaft for concentricity and align. Concentricity tolerance max. 0.06 mm for motors ≤ 30 kW 0.08 mm for motors > 30 kW

1. Remove the feather key from the motor shaft extension. 2. Degrease the motor shaft extension and bore of the hollow shaft.

7.. / 10.. / 11.. / 123. / 34.. / 35..

3.

1. Remove the feather key from the motor shaft extension.

4. Push the hollow shaft with shrink-fit ring onto the motor shaft extension up to the shaft shoulder.

7. Screw the clamping disc to the motor flange. 8. Insert the shaft seal housing or mating ring with seal in to the pump casing and secure (in accordance with the orderrelated documentation). 9. Screw together the pump casing and clamping disc so as to be fingertight. 10. Fit the front seal set of the shaft seal. 11. Insert the seal ring into the impeller nut. Secure the impeller against twisting and tighten the impeller nut with 100 Nm. 12. Set the gap size of the cover, impeller and casing by shifting the pump casing within the clamped joint (see Tab. 3 Gap sizes).

5. Tighten the hexagon socket screws of the shrink-fit ring in diagonally opposite sequence (see Tab. 6).

11

8.5.2.5 FPE with double mechanical shaft seal

7.. / 10.. / 11.. / 123. / 34.. / 35..

Size:

3. Seal the motor shaft extension around the shaft shoulder with a sealing gel (e.g. Stucarit sealing gel 309).


Size:

8.5.2.4 FPE with single mechanical shaft seal

2. Degrease the motor shaft extension and bore of the hollow shaft.

14. Place the cover with seal onto the casing and screw down.

13. Tighten the clamping screw with the following tightening torque: - M 10 with 45 Nm - M 12 with 75 Nm.

The radial lip seal must run on a shaft protecting sleeve. For the position of the shaft protecting sleeve, see the mechanical shaft seal drawing (order-related documentation). Push the protecting sleeve onto the shaft using a tube (asembly aid). CAUTION

MotorPower

Tube length

Inner diameter

< 7.5 kW

120 mm

23 mm

> 7.5 kW

150 mm

36 mm

Tab. 7 Assembly tool

P

4. Only for shafts with a 22 mm diameter (drive up to 7.5 kW): Insert greased O-ring into the groove on the pump casing. Place seal cover with radial lip seal onto the pump casing. Align seal cover on pump casing. The pipe bores for the sealing liquid must be vertical. Tighten the three grub screws in the seal cover.

7. Check the hollow shaft for concentricity and align. Concentricity tolerance max. 0.06 mm for motors ≤ 30 kW 0.08 mm for motors > 30 kW

U

M

P

E

N


8.5.3 Assembly Motor The motor is fitted together with the pump head:

Seal the motor shaft extension around the shaft shoulder with a sealing gel (e.g. Stucarit sealing gel 309).

A, B, C, D

version

yes

K / KF

version

no

Bearing pedestal

version

no

FPE

version

yes

8.5.3.1 Versions K and KF 8. Screw the clamping disc to the motor flange. 9. Fit the stationary parts of the mechanical seal into the pump casing (in accordance with the order-related document). 10. Carefully wedge open the clamping ring slightly.

5. Push the hollow shaft with shrink-fit ring onto the motor shaft extension up to the shaft shoulder. 6. Tighten the hexagon socket screws of the shrink-fit ring in diagonally opposite sequence (see Tab. 8). Hex socket screw

Tightening torque

M5 M6

6 Nm 12 Nm

Tab. 8 Tightening torque for the fastening screws of the shrink-fit ring

11. Push the pump casing into the clamping ring and tighten the screw by hand.

1. Insert the plastic feather key supplied into the motor shaft extension. 2. Coat the motor shaft extension and feather key with a lubricating paste containing copper. 3. Screw together the motor and compact bearing bracket. CAUTION

Only insert the plastic feather key

supplied.

12. Screw the sealing liquid pipe into the seal cover, seal with sealant. 13. Mount the rotary parts of the shaft seal. Insert the drive key, slotted locking ring and impeller. 14. Insert the seal ring into the impeller nut. Secure the impeller against twisting and tighten the impeller nut with 100 Nm. 15. Set the gap size of the cover, impeller and casing by shifting the pump casing within the clamped joint (see Tab. 3 Gap sizes).

8.5.3.2 Bearing pedestal version 1. Screw tight the bearing pedestal to the base frame. 2. Insert the coupling between the bearing pedestal and motor and align (in accordance with the order-related documentation). 3. Screw tight the motor to the base frame. 4. Mount the coupling protector. 5. Check the oil level and top up if necessary (not applicab le with bearing pedestal 1).

16. Tighten the clamping screw with the following tightening torque: - M 10 with 45 Nm - M 12 with 75 Nm. 17. Place the cover with seal onto the casing and screw down. 12


9. Spare parts

Only use original Fristam spare parts. The use of other manufacturers parts renders the warranty void. In order to ensure the prompt supply of spare parts, we require the following information: 1. Pump type and pump no. 2. Components list no. 3. Part no. of the spare part concerned 4. Material required 5. Number of the respective spare part

13

P

U

M

P

E

N

10. Faults

Causes

Remedy

Delivery head too small

a. Motor rotating in wrong direction

Motor connected to the terminals incorrectly. Compare connection with the circuit diagram and correct

b. Motor speed too low (incorrect voltage)

Compare voltage applied with the rating plate

c. Impeller diameter too small

Replace impeller after consulting the Fristam Application Advice Service

d. Impeller not set correctly

Check the impeller gap and reset

e. Pumped fluid too viscous

Call Fristam Application Advice Service

a. Motor rotating in wrong direction

Motor connected to the terminals incorrectly. Compare connection with the circuit diagram and correct.

b. Resistance too great in suction pipe and/or delivery pipe

Increase pipe diameter and/or reduce number of pipe bends and valves

c. Pumped fluid too viscous


d. Impeller not set correctly


a. Pumped fluid too viscous


b. Impeller not set correctly


c. Resistance in the delivery pipe too low (flow rate too high)

Regulate speed, e.g. with a frequencyconverter, or install a control valve in the delivery pipe

d. Impeller diameter too large

Reduce the Impeller after consulting Fristam Application Advice Service

a. Resistance in the suction pipe is too high

Increase the diameter of the suction pipe and/or reduce the length of the suction pipe

b. Liquid level in the suction pipe is too low

Increase NPSHlevel

c. Impeller hits against casing


d. Bearing damage

Replace bearing

If you are not able to pinpoint and eliminate a fault by referring to the table above, the Fristam Application Advice Service is available to help you at any time. We require the following information:

1. Operating conditions

Flow rate too low

Power consumption of the drive motor is too high

Excessive noise

2. Precise description of the fault 3. Pump type and serial number 4. If possible, drawing of pump installation

14


U M P E

BA/FP/GB/0204

P N

CENTRIFUGAL PUMPS FP SERIES

Recommend Documents